DRV8231/A 33 V H-Bridge Motor Drivers from Texas Instruments

DCS Digi Key DRV8231 A Bridge Motor Drivers 1 400jpg

March 14, 2022

 

Texas Instruments’ DRV8231 and DRV8231A are integrated motor drivers with an N-channel H-bridge, charge pump, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half-bridges and 100% duty-cycle driving. The DRV8231/A implements a current regulation feature by comparing the analog input VREF and the voltage across a current-sense shunt resistor on the ISEN pin. The ability to limit current can significantly reduce large currents during motor startup and stall conditions.

A low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout (UVLO), output overcurrent protection (OCP), and device overtemperature shutdown (TSD). The DRV8231 comes in pin-to-pin, scalable RDS(ON), and supply voltage options to support various loads and supply rails with minimal design changes.

 

Features
  • •N-channel H-bridge brushed DC motor driver
  • •Operating supply voltage range: 4.5 V to 33 V
  • •Pin-to-pin, RDS(ON), voltage, and current sense/regulation variants (external shunt resistor and an integrated current mirror):
    • •DRV8231: 4.5 V to 33 V, 600 mΩ, shunt
    • •DRV8231A: 4.5 V to 33 V, 600 mΩ, mirror
  • •High output current capability: 3.7 A peak
  • •PWM control interface
  • •Logic inputs: 1.8 V, 3.3 V, and 5 V
  • •Integrated IPROPI current sensing for stall detection and current regulation
  • •Low-power sleep mode: <1 µA at VVM = 24 V, TJ = +25°C
  • •Small package and footprint:
    • •8-pin WSON with a PowerPAD™, 2.0 mm x 2.0 mm
    • •8-pin HSOP with a PowerPAD, 4.9 mm x 6.0 mm
  • •Integrated protection: VM UVLO, auto-retry OCP, and TSD

 

Applications
  • •Automated teller machines (ATMs)
  • •Ventilators
  • •Surgical equipment
  • •Electronic hospital beds and bed controls
  • •Fitness machines
  • •Printers
  • •Vacuum robots
  • •Washers and dryers
  • •Coffee machines
  • •POS printers
  • •Electricity meters

DCS Digi Key DRV8231 A Bridge Motor Drivers 3 400jpg

 

 

 

To learn more about the Bridge Motor Drivers, click here

 

Related Articles



Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More



Latest Articles

  • The Power of OPC-UA in Industrial Automation

    February 27, 2024 In the world of industrial automation, the need for seamless communication between devices and systems in paramount. This is where OPC-UA (Open Platform Communications United Architecture) comes into play. OPC-UA is an open and secure communication protocol that enables interoperability between different devices and software applications. In this blog post, Omron explores… Read More…

  • Helping McMaster University Adapt its Buildings for the Future

    Helping McMaster University Adapt its Buildings for the Future

    February 22, 2024 McMaster University is using technology to better control and manage its legacy thermal systems and create smarter buildings McMaster University is using technology to better control and manage its legacy thermal systems and create smarter buildings. Carmichael Engineering Ltd., a Canadian systems integrator, worked closely with ABB Canada’s leading experts and its highly… Read More…